@misc{indiciae11d49467665b,
  title = {Preliminary aerial photographic interpretative map showing features related to the May 18, 1980 eruption of Mount St. Helens, Washington},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1980},
  doi = {10.3133/mf1254},
  url = {https://pubs.usgs.gov/publication/mf1254},
  note = {Source identifier: mf1254}
}